I took the sample document style example and added a second method for both bare and wrapped. Then I modified the build and created the war files. When I deploy the war files and invoke the methods. For te wrapped style, it works fine. For the bare style, invoking any method other than the first will throw an exception:

org.jboss.ws.binding.BindingException: javaType org.jboss.test.ws.samples.docstyle.bare.TrivialOrderPriceResponse is not assignable from: org.jboss.test.ws.samples.docstyle.bare.TrivialOrderResponse

It always tries to assign the return type to the return type for th first method.